Thermal pack



FIG. 1 is a perspective view of a thermal pack showing the new design.

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a right-side elevation view thereof;

FIG. 5 is a left-side elevation view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Structure illustrated in broken lines is provided to illustrate the environment of the invention but is not otherwise part of the claimed design. 

CLAIM The ornamental design for a thermal pack, as substantially shown and described. 